11353541809 has 9 divisors (see below), whose sum is σ = 11457299577. Its totient is φ = 11250718164.

The previous prime is 11353541803. The next prime is 11353541833. The reversal of 11353541809 is 90814535311.

The square root of 11353541809 is 106553.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-11353541809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11353541803) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13531812 + ... + 13532650.

Almost surely, 2^11353541809 is an apocalyptic number.

11353541809 is the 106553-rd square number.

11353541809 is the 53277-th centered octagonal number.

It is an amenable number.

11353541809 is a deficient number, since it is larger than the sum of its proper divisors (103757768).

11353541809 is an frugal number, since it uses more digits than its factorization.

11353541809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 11353541809 in words is "eleven billion, three hundred fifty-three million, five hundred forty-one thousand, eight hundred nine".